Vacuum Solenoid Valve – Normally Closed

What is Vacuum Solenoid Valve?

Vacuum solenoid valve is an electromechanical on/off valve operating in an environment where air or gas is vacuumed. This valve is actuated by a solenoid (a wire that conducts electric current that creates a magnetic field around the coil) and manages the flow of air or gas using a paddle mechanism and air cap.

Where Is Vacuum Solenoid Valve Used?

Vacuum solenoid valves are used in a variety of industrial applications. For example:

1. In automobile engines, vacuum solenoid valves are used in systems that regulate the air/gasoline mixture. These valves operate in an environment where air or gas is vacuumed and adjust the air/gasoline mixture according to many factors that affect the operating performance of the engine.
2. In air compressors, it is used in a system that manages the air pressure and adjusts the pressure while the air compressor is running.
3. In industrial automation systems, it works in an environment where air or gas is vacuumed and manages the flow of air or gas according to many factors controlled in industrial processes.

What are the Advantages and Disadvantages of Vacuum Solenoid Valve?

The advantages of vacuum solenoid valves are their light weight, small size and easy control. However, a disadvantage of these valves is that although they can operate in an environment where air or gas is vacuumed, they are not suitable for operation in a pressurized environment.

Solenoid valves are manufactured in two types as normally closed (to open the closed valve when the coil receives energy) and normally open (to close the open valve when it receives energy from the coil).

Normally Closed Operation System

Normally Closed Solenoid valve initially allows the passage of fluid. In order for the valve to open, the coil moves with the electric current coming to the coil, pulls the core upwards and opens the mouth of the orifice hole, and thus, the fluid under high pressure advances to the outlet quickly from the bypass hole. With this progress, the pressure inside drops very quickly and a pressure difference occurs inside. Due to this difference, the diaphragm overcomes the spring force and rises upwards and fluid passage is allowed, so the valve is in the open position. All this happens in a very short time. Our product is designed to get the best efficiency.

General features

• Gasket: NBR
• Sleeve: Stainless
• Body: Brass
• Core: Stainless
• Temperature: -10 / +90 °C
• Coil: Socket

Suggestions

Mount the solenoid valve so that the coil is up. In the installation, such as a strainer before the solenoid valve, etc. use filters. We use more durable diaphragm and gasket material for high temperatures
Please specify your diaphragm and gasket request for high temperature in your orders.

Things to Consider When Choosing a Solenoid Valve:

• The coil should be selected in accordance with the operating voltage (AC-DC). Protection and insulation should be provided according to the place where it will be applied. (Electricity turns on when air comes in, and turns off again when you cut off the electricity)
• In the line or system you will use, min. and max. pressure values are very important in the selection of the valve.
• The quality and temperature of the fluid is a direct factor in the selection of the valve.
• The direction of the fluid and the arrow mark on the body are in the same direction and attention should be paid to the assembly.
• Since the solenoid valve does not function as a check valve, the fluid flows back at reverse pressures. In these cases, installing a check valve after the solenoid valve is correct for the connection.
• The line to which the valve is attached must be free of impurities.